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The Donatus Architecture

Donatus comprises (1) a plugin architecture for integrating backend tools and data sources, using a simple programmatic interface (this interface will be described in a separate document); (2) a hub that invokes the appropriate backend plugins, passes linguistic data for analysis, and integrates data from the backends into a unified XML document that may be passed to user agents; and (3) public interfaces to the hub, including a CGI interface designed for direct human use, and an XML-RPC interface designed for programmatic use. The XML-RPC interface is described in this document.

Donatus employs a two-tiered lookup strategy for morphological analysis. First, forms are delegated for analysis to a backend that supports the appropriate language. If the backend fails to identify the form, a fallback database is queried. The fallback system allows new lemma/form/analysis triples to be added to Donatus through a single interface, with no need to extend the backend systems. This functionality is especially important, because backends may be proprietary or legacy systems that cannot be extended by users.


next up previous
Next: Donatus Servers Up: The Donatus XML-RPC Interface Previous: Introduction
Malcolm D. Hyman 2004-04-07